lucene-dev mailing list archives

Thanks for your hint.
I tried simple solution as following:
Firstly I determine the document type “A” and stored them in an array by
searching the field document type in the index:
public static void doStreamingSearch(final Searcher searcher, Query query)
throws IOException {
Collector streamingHitCollector = new Collector() {
// simply print docId and score of every matching document
@Override
public void collect(int doc) throws IOException {
c++;
// System.out.println("doc=" + doc);
doc_id.add(doc+"");
// System.out.println("doc=" + doc );
// scorer.score());
}
@Override
public boolean acceptsDocsOutOfOrder() {
return true;
}
@Override
public void setNextReader(IndexReader arg0, int arg1)
throws IOException {
// TODO Auto-generated method stub
}
@Override
public void setScorer(Scorer arg0) throws IOException {
// TODO Auto-generated method stub
}
};
searcher.search(query, streamingHitCollector);
}
Then I modified the HighFrequentTerm in lucene as follows:
while (terms.next()) {
dok.seek(terms);
while (dok.next()) {
for(int i=0;i< doc_id.size();++i)
{
if( doc_id.get(i).equals(dok.doc()+""))
{
if (terms.term().field().equals(field) ) {
tiq.insertWithOverflow(new TermInfo(terms.term(), dok.freq()));
}
}
I could test that i correctly have only the document type „A“. However, the
result is not correct because I can see few terms twice in the ordered high
frequent list.
Any hints where are the problem?
Michael McCandless-2 wrote
>
> You'd have to modify HighFreqTerm's sources...
>
> Roughly...
>
> First, make a bitset recording which docs are type A (eg, use
> FieldCache), second, change HighFreqTerms so that for each term, it
> walks the postings, counting how many type A docs there were, then...
> just use the rest of HighFreqTerms (priority queue, etc.).
>
> Mike McCandless
>
> http://blog.mikemccandless.com
>
> On Thu, Mar 29, 2012 at 11:33 AM, starz10de &lt;farag_ahmed@&gt; wrote:
>> HI,
>>
>> I am using HighFreqTerms class to compute the high frequent terms in the
>> Lucene index and it works well. However, I am interested to compute the
>> high
>> frequent terms under some condition. I would like to compute the high
>> frequent terms not for all documents in the index instead only for
>> documents
>> with type “A”. Beside the “contents” field in the index I have also the
>> “DocType” (document type) in the index as extra field.
>> So I should compute the high frequent term only (if DocType=”A”)
>>
>> Any idea how to do this?
>>
>> Thanks
>>
>> --
>> View this message in context:
>> http://lucene.472066.n3.nabble.com/conditional-High-Freq-Terms-in-Lucene-index-tp3868066p3868066.html
>> Sent from the Lucene - Java Developer mailing list archive at Nabble.com.
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: dev-unsubscribe@.apache
>> For additional commands, e-mail: dev-help@.apache
>>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: dev-unsubscribe@.apache
> For additional commands, e-mail: dev-help@.apache
>
Michael McCandless-2 wrote
>
> You'd have to modify HighFreqTerm's sources...
>
> Roughly...
>
> First, make a bitset recording which docs are type A (eg, use
> FieldCache), second, change HighFreqTerms so that for each term, it
> walks the postings, counting how many type A docs there were, then...
> just use the rest of HighFreqTerms (priority queue, etc.).
>
> Mike McCandless
>
> http://blog.mikemccandless.com
>
> On Thu, Mar 29, 2012 at 11:33 AM, starz10de &lt;farag_ahmed@&gt; wrote:
>> HI,
>>
>> I am using HighFreqTerms class to compute the high frequent terms in the
>> Lucene index and it works well. However, I am interested to compute the
>> high
>> frequent terms under some condition. I would like to compute the high
>> frequent terms not for all documents in the index instead only for
>> documents
>> with type “A”. Beside the “contents” field in the index I have also the
>> “DocType” (document type) in the index as extra field.
>> So I should compute the high frequent term only (if DocType=”A”)
>>
>> Any idea how to do this?
>>
>> Thanks
>>
>> --
>> View this message in context:
>> http://lucene.472066.n3.nabble.com/conditional-High-Freq-Terms-in-Lucene-index-tp3868066p3868066.html
>> Sent from the Lucene - Java Developer mailing list archive at Nabble.com.
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: dev-unsubscribe@.apache
>> For additional commands, e-mail: dev-help@.apache
>>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: dev-unsubscribe@.apache
> For additional commands, e-mail: dev-help@.apache
>
Michael McCandless-2 wrote
>
> You'd have to modify HighFreqTerm's sources...
>
> Roughly...
>
> First, make a bitset recording which docs are type A (eg, use
> FieldCache), second, change HighFreqTerms so that for each term, it
> walks the postings, counting how many type A docs there were, then...
> just use the rest of HighFreqTerms (priority queue, etc.).
>
> Mike McCandless
>
> http://blog.mikemccandless.com
>
> On Thu, Mar 29, 2012 at 11:33 AM, starz10de &lt;farag_ahmed@&gt; wrote:
>> HI,
>>
>> I am using HighFreqTerms class to compute the high frequent terms in the
>> Lucene index and it works well. However, I am interested to compute the
>> high
>> frequent terms under some condition. I would like to compute the high
>> frequent terms not for all documents in the index instead only for
>> documents
>> with type “A”. Beside the “contents” field in the index I have also the
>> “DocType” (document type) in the index as extra field.
>> So I should compute the high frequent term only (if DocType=”A”)
>>
>> Any idea how to do this?
>>
>> Thanks
>>
>> --
>> View this message in context:
>> http://lucene.472066.n3.nabble.com/conditional-High-Freq-Terms-in-Lucene-index-tp3868066p3868066.html
>> Sent from the Lucene - Java Developer mailing list archive at Nabble.com.
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: dev-unsubscribe@.apache
>> For additional commands, e-mail: dev-help@.apache
>>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: dev-unsubscribe@.apache
> For additional commands, e-mail: dev-help@.apache
>
--
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